URLLC enhancement with multi-TRP/panel/beam using FDM

Abstract

In accordance with some embodiments, a method may include configuring, by a user equipment, at least a first transmission configuration index (TCI), a second TCI, and at least two non-overlapping frequency resource regions in a single time domain resource. The first TCI may be associated with at least one non-overlapped frequency resource region. The second TCI may be associated with at least one non-overlapped frequency resource region which not assigned to the first TCI. At least one association of a state of the first TCI, a state of the second TCI, and the at least one non-overlapping resource region may be changed in a next time domain repetition instance.

We claim: 
     
       1. A method, comprising:
 configuring, by a user equipment, at least a first transmission configuration index (TCI), a second TCI, and at least two non-overlapping frequency resource regions in a single time domain resource, wherein 
 the first TCI is associated with at least one of the non-overlapped frequency resource regions, 
 the second TCI is associated with at least one of the non-overlapped frequency resource regions which is not assigned to the first TCI, and 
 at least one association of a state of the first TCI, a state of the second TCI, and the at least one non-overlapping resource region is changed in a next time domain repetition instance, 
 wherein at least one transmit receive point (TRP) is associated with at least one non-overlapping frequency resource with one TCI state for multi-TRP transmissions in a time instance, and the same or some other set of non-overlapping frequency resources in a different time instance wherein the same transport block (TB) repeats with the same TCI state, 
 wherein the association between each non-overlapped frequency resource and corresponding TCI state of a transport block repetition in a time instance is received by the user equipment as a configuration by a preconfigured pattern, 
 wherein partitioning of at least one entire frequency resource allocation is configured by higher layer signaling, 
 wherein each downlink control information (DCI) is configured to carry at least one bit map to derive the TCI association with resource portions and related information configured to derive a number of portions, and 
 wherein in a case where the DCI indicated frequency allocation is 60 physical resource block (PRB) and two TRPs use two non-adjacent frequency allocations, wherein 15 PRB is a portioning size of a non-overlapped frequency allocation, wherein each TRP uses two portions. 
 
     
     
       2. The method according to  claim 1 , wherein at least one portion size is derived based on at least one bit map received at the user equipment. 
     
     
       3. The method according to  claim 1 , wherein at least one TCI state used by one TRP matches across different time instances. 
     
     
       4. The method according to  claim 1 , wherein at least one TCI state used by at least one TRP changes across different time instances and is indicated as a semi-static manner. 
     
     
       5. The method according to  claim 1 , wherein the association between each non-overlapped frequency resource and corresponding TCI state of a transport block repetition in a time instance is received by the user equipment as a dynamic configuration. 
     
     
       6. The method according to  claim 1 , wherein at least one dynamic configuration may be related or derived at least based upon at least one indication of the scheduled resources, modulation and coding scheme (MCS), or defined TCI association of the transmission. 
     
     
       7. The method according to  claim 1 , wherein multiple options for partitioning of the full frequency resource allocation and TCI association are configured using higher layer signaling. 
     
     
       8. The method according to  claim 1 , wherein at least one dynamic indication is configured to trigger at least one of multiple options for partitioning. 
     
     
       9. The method according to  claim 1 , wherein the same or different single/multiple demodulation reference signal (DMRS) ports are associated with some or all non-overlapped frequency resource allocations. 
     
     
       10. The method according to  claim 1 , wherein when a single codeword with one redundancy version (RV) is used across a full resource allocation, a first TRP is configured to use at least one TCI state and at least one associated resource allocation, and a second TRP is configured to use at least one different TCI state and at least one corresponding resource allocation. 
     
     
       11. The method according to  claim 1 , wherein the full resource allocation is configured to be used in a transport block size (TBS) determination with a single MCS or two MCS/modulation orders, or common overhead assumptions. 
     
     
       12. A method, comprising:
 transmitting, by a network entity, at least one configuration to a user equipment with at least a first transmission configuration index (TCI), a second TCI, and at least two non-overlapping frequency resource regions in a single time domain resource, wherein 
 the first TCI is associated with at least one of the non-overlapped frequency resource region, 
 the second TCI is associated with at least one of the non-overlapped frequency resource region which is not assigned to the first TCI, and 
 at least one association of a state of the first TCI, a state of the second TCI, and the at least one non-overlapping resource region is changed in a next time domain repetition instance, 
 wherein at least one transmit receive point (TRP) is associated with at least one non-overlapping frequency resource with one TCI state for multi-TRP transmissions in a time instance, and the same or some other set of non-overlapping frequency resources in a different time instance wherein the same transport block (TB) repeats with the same TCI state, 
 wherein the association between each non-overlapped frequency resource and corresponding TCI state of a transport block repetition in a time instance is received by the user equipment as a configuration by a preconfigured pattern, 
 wherein partitioning of at least one entire frequency resource allocation is configured by higher layer signaling, 
 wherein each downlink control information (DCI) is configured to carry at least one bit map to derive the TCI association with resource portions and related information configured to derive a number of portions, and 
 
       wherein in a case where the DCI indicated frequency allocation is 60 physical resource block (PRB), and two TRPs use two non-adjacent frequency allocations, wherein 15 PRB is a portioning size of a non-overlapped frequency allocation, and each TRP uses two portions. 
     
     
       13. An apparatus, comprising:
 at least one processor; and 
 at least one memory including computer program code, wherein the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus to perform the method of  claim 12 . 
 
     
     
       14. An apparatus, comprising:
 at least one processor; and 
 
       at least one memory including computer program code, wherein the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus to perform:
 configuring at least a first transmission configuration index (TCI), a second TCI, and at least two non-overlapping frequency resource regions in a single time domain resource, wherein 
 the first TCI is associated with at least one of the non-overlapped frequency resource regions, 
 the second TCI is associated with at least one of the non-overlapped frequency resource regions which is not assigned to the first TCI, and 
 at least one association of a state of the first TCI, a state of the second TCI, and the at least one non-overlapping resource region is changed in a next time domain repetition instance, 
 wherein at least one transmit receive point (TRP) is associated with at least one non-overlapping frequency resource with one TCI state for multi-TRP transmissions in a time instance, and the same or some other set of non-overlapping frequency resources in a different time instance wherein the same transport block (TB) repeats with the same TCI state, 
 wherein the association between each non-overlapped frequency resource and corresponding TCI state of a transport block repetition in a time instance is received by the user equipment as a configuration by a preconfigured pattern, 
 wherein partitioning of at least one entire frequency resource allocation is configured by higher layer signaling, 
 wherein each downlink control information (DCI) is configured to carry at least one bit map to derive the TCI association with resource portions and related information configured to derive a number of portions, and 
 wherein in a case where the DCI indicated frequency allocation is 60 physical resource block (PRB), and two TRPs use two non-adjacent frequency allocations, wherein 15 PRB is a portioning size of a non-overlapped frequency allocation, wherein each TRP uses two portions. 
 
     
     
       15. The apparatus according to  claim 14 , wherein at least one transmit receive point (TRP) is associated with at least one non-overlapping frequency resource with one TCI state for multi-TRP transmissions in a time instance. 
     
     
       16. The apparatus according to  claim 14 , wherein the association between each non-overlapped frequency resource and corresponding TCI state of a transport block repetition in a time instance is received by the apparatus as a configuration by a preconfigured pattern.